llms.txt
+18 −16
https://plumbregistry.com/llms.txt
− > Verified, license-backed directory of commercial compliance contractors. Coverage: 1,799 fire protection companies hold active Texas State Fire Marshal's Office registrations: 644 fire sprinkler, 1,062 fire alarm and 655 fire extinguisher, as of October 26, 2026. 2,107 contractors based in California hold an active California CSLB C-16 Fire Protection Contractor license, as of October 26, 2026.− - [Texas](https://plumbregistry.com/fire-protection/texas/index.md): 1,799 companies; source: Texas Department of Insurance, State Fire Marshal's Office (https://appscenter.tdi.texas.gov/reports/p/sfmo), retrieved October 26, 2026. Verified license types: Texas SFMO Fire Sprinkler Certificate of Registration (SCR); Texas SFMO Fire Alarm Certificate of Registration (ACR); Texas SFMO Fire Extinguisher Certificate of Registration (ECR).− - [California](https://plumbregistry.com/fire-protection/california/index.md): 2,107 companies; source: California Contractors State License Board (CSLB) (https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/CheckLicense.aspx), retrieved October 26, 2026. Verified license types: California CSLB C-16 Fire Protection Contractor license. California listings cover CSLB C-16 Fire Protection contractors (sprinkler and fixed suppression systems). Fire alarm and portable extinguisher companies are not − - [Houston, TX](https://plumbregistry.com/fire-protection/texas/houston/index.md): 182 companies− - [San Antonio, TX](https://plumbregistry.com/fire-protection/texas/san-antonio/index.md): 115 companies− - [San Francisco, CA](https://plumbregistry.com/fire-protection/california/san-francisco/index.md): 96 companies− - [Dallas, TX](https://plumbregistry.com/fire-protection/texas/dallas/index.md): 78 companies− - [El Paso, TX](https://plumbregistry.com/fire-protection/texas/el-paso/index.md): 54 companies− - [Sacramento, CA](https://plumbregistry.com/fire-protection/california/sacramento/index.md): 31 companies− - [Irving, TX](https://plumbregistry.com/fire-protection/texas/irving/index.md): 25 companies− - [Burbank, CA](https://plumbregistry.com/fire-protection/california/burbank/index.md): 23 companies− - [Oakland, CA](https://plumbregistry.com/fire-protection/california/oakland/index.md): 22 companies− - [Santa Rosa, CA](https://plumbregistry.com/fire-protection/california/santa-rosa/index.md): 21 companies− - [Fresno, CA](https://plumbregistry.com/fire-protection/california/fresno/index.md): 21 companies− - [Katy, TX](https://plumbregistry.com/fire-protection/texas/katy/index.md): 19 companies− - [Garland, TX](https://plumbregistry.com/fire-protection/texas/garland/index.md): 18 companies+ > Verified, license-backed directory of commercial compliance contractors. Coverage: 1,801 fire protection companies hold active Texas State Fire Marshal's Office registrations: 636 fire sprinkler, 1,064 fire alarm and 650 fire extinguisher, as of November 2, 2026. 2,095 contractors based in California hold an active California CSLB C-16 Fire Protection Contractor license, as of November 2, 2026.+ - [Texas](https://plumbregistry.com/fire-protection/texas/index.md): 1,801 companies; source: Texas Department of Insurance, State Fire Marshal's Office (https://appscenter.tdi.texas.gov/reports/p/sfmo), retrieved November 2, 2026. Verified license types: Texas SFMO Fire Sprinkler Certificate of Registration (SCR); Texas SFMO Fire Alarm Certificate of Registration (ACR); Texas SFMO Fire Extinguisher Certificate of Registration (ECR).+ - [California](https://plumbregistry.com/fire-protection/california/index.md): 2,095 companies; source: California Contractors State License Board (CSLB) (https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/CheckLicense.aspx), retrieved November 2, 2026. Verified license types: California CSLB C-16 Fire Protection Contractor license. California listings cover CSLB C-16 Fire Protection contractors (sprinkler and fixed suppression systems). Fire alarm and portable extinguisher companies are not + - [Houston, TX](https://plumbregistry.com/fire-protection/texas/houston/index.md): 185 companies+ - [San Antonio, TX](https://plumbregistry.com/fire-protection/texas/san-antonio/index.md): 116 companies+ - [San Francisco, CA](https://plumbregistry.com/fire-protection/california/san-francisco/index.md): 95 companies+ - [Dallas, TX](https://plumbregistry.com/fire-protection/texas/dallas/index.md): 77 companies+ - [El Paso, TX](https://plumbregistry.com/fire-protection/texas/el-paso/index.md): 53 companies+ - [Sacramento, CA](https://plumbregistry.com/fire-protection/california/sacramento/index.md): 27 companies+ - [Burbank, CA](https://plumbregistry.com/fire-protection/california/burbank/index.md): 24 companies+ - [Santa Rosa, CA](https://plumbregistry.com/fire-protection/california/santa-rosa/index.md): 22 companies+ - [Irving, TX](https://plumbregistry.com/fire-protection/texas/irving/index.md): 21 companies+ - [Oakland, CA](https://plumbregistry.com/fire-protection/california/oakland/index.md): 21 companies+ - [Fresno, CA](https://plumbregistry.com/fire-protection/california/fresno/index.md): 20 companies+ - [Katy, TX](https://plumbregistry.com/fire-protection/texas/katy/index.md): 18 companies+ - [Garland, TX](https://plumbregistry.com/fire-protection/texas/garland/index.md): 17 companies+ - [Fire sprinkler and fire alarm costs in San Francisco](https://plumbregistry.com/guides/fire-protection-costs-san-francisco/): What San Francisco fire sprinkler and fire alarm work costs, per head and per job, from thousands of contractor-declared values on city building permits. Updated weekly.+ - [Fire permits in San Diego: how long they take and who pulls them](https://plumbregistry.com/guides/san-diego-fire-permits/): How long San Diego fire alarm, sprinkler, underground fire line and kitchen hood permits take to issue, how many are filed each year, and which licensed contractors pull the most. Updated weekly from city records.